Fire and burglar alarm.



1. M. MCCONNELL.

FIRE AND BURGLAR ALARM.

APPLICATLON FILED SEPT. 23. 1916.

Patented Sept. 1l, 191? 2 SHEETS-SHEET l.

Jam/22.5"Y M@ fammi@ @X3i/imam@ MQW j J. M. MCCONNELL.

FIRE AND BURGLAR ALARM.

APPLxcArloN FILED SEPT. 23. |916.

393A?, Patentedsept. 11,1917.

'2 lSHEETS-SHEET 2.

IIN" .Il

JAMES M'.V MUCONNELL, 0F GREENSBURG, INDIANA.

FIRE AND `ennemie ALARM.

1,239,497w` Y ,fiumi l Specification of Letters Patent.

retreated sept. ii, iai a.

Application filed September 23, 1916. Serial No. 121,749.

To all whom t may concern:

Be it lmown that I, JAMES M. MCCoN- NELL, a citizen of the United States, residing at Greensburg, inthe county of Decatur and State of Indiana, `have invented new f and useful Improvements in Fire and Burglar Alarms, specification.

This invention relates to re and burglar alarms and it consists in the novel features hereinafter described and claimed. y

An object of the invention is to provide an alarm of the character indicated which is automatic in its action and adapted to sound a bell inthe event that its active parts are released or disturbed in consequence of the movement of 4a window sash or door, or in the event that cords employed in the device are severed by the burning action of tire. V

With this object in view the device includes a casing having a pulley journaled therein with means for limiting the turning movement of the said pulley.` Cables are wound upon the members of the said pulley in opposite directions and are trained through the side of the casing andI carry weights at their outer ends. A bell is posiof which the following is a tioned below one of the said weights, the

heavier weight, and is adapted to be sounded by the said weightwhen the same descends. Another'pulley is also journaled in the casin and a lever is attachedto the last said pulley. An arm is connected with the said lever and carries a weight. There is a weight adjustably mounted upon the said lever. Cables are attached with the free ends of the lever .and arm and may be manually pulled for swinging the lever and arm. Cords pass through the top of the casing and weightsare attached to their lower ends the said weights being suspended above the Vsaid lever. The last mentioned cords are adapted to be connected with a window sash, doors or beams and when the said cords are permitted to move longitudinally by moving the Window sash or the doors or in the event that they are severed by fire, the weights j drop upon the lever and actuate the mechanism whereby the bell is sounded.

`ing 1 of wood or said weight descends In the accompanying drawings p Figure l is a side elevation of the casing with parts removed and showing the arrangement of the mechanism therein.

Fig. 2 is a side elevation of a portion of a sash illustrating the parts which coperate therewith.

Fig. 3 is a sectional view of the casing cut 0n the line 3-3 of Fig. 1.

The lire and burglar alarm includes a casany other suitable material having a pulley 2, journaled therein. A stop 3 is mounted at the side of the pulley 2 and may engage a cushion 4 mounted at a iXed point within the casing l whereby the turning movement of the pulley 2 is limited, the said cushion also preventing noise when the stop engages the same to check the turning movement of the pulley 2. A cable 5 is attached to the periphery of the pulley 2 and is arranged to wind upon the same. The said cable is trained through the end of the casing l and carries at its lower *end a relatively heavy weight 6. A bell 7 is located below the weight 6 and when the and encounters the bell the same is caused to ring and sound an alarm. A cable 8 is attached to the periphery of the pulley 2 and is arranged to wind upon the same in a direction opposite to that in which the cable 5 winds thereon. The cable 8 is alsotrained through the end of the casing l and carries at its outer lower end a relatively light weight 9. Stops l0 and 1l are mounted upon the pulley 2 and project beyond the periphery thereof. A cable 12 is attached to the pulley 2 and is trained through the opposite end of the casing l from that end through which the cables 5 and 8 pass. The cable l2 may be pulled manually whereby the pulley 2 is turned to permit the cable 5 to move longitudinally whereby the weight 6 may descend and come in contact with the bell 7 and sound the same. Thus an additional means is provided for operating the alarm. A single pulley 13 is journaled in the casing 1 and is provided with a stop 14 which projects beyond the periphery thereof and into the paths of movement of the stops l() and 1l hereinbefore described. A lever is xed to the pulley 13 and normally lies in an approximately horizontal position. A balancing weight 16 is adjustably mounted upon the lever v15. Anarm 17 is connected with the lever 15 and carries at its free end portion a relatively heavy weight 18. The inner end portion of 'hearm 17 is `connected with the lever 15 and consequently they swing in unison. A cable 19 is connected with` the free end portion of the lever 15 and is trained through the side of the casing may be manually pulled for swinging rthe free end of the lever 15 in a downward direction. A cable 2 0 is connected .with the free end .of `the arm 17 and trained through the adjacent side of thecasing 1 and `may be manually pulled for swinging the free end of ,theV arm in an upward direction.

,Cords 21 pass `through the top of the ,casing 1 above the free end portion of the lever 15 and weights 22 are attached tothe rlower inner ends of the Acords 21 and hang spaced above the free end portion ofthe Vlever 15.

The'oords 21 are each arranged to wind upon a spool 23 4and each spool is designed to be journaled upon a windowor door fram@- Assuming that the spool is attached to a window frame and is adapted to be released when the sash is moved the frame, the spool is provided at its sides with a ratchet wheel or disk 24 and the cord 21 is wound on the said spool so that the attached weight 22 is heldin an elevated position above the A A y u Vconjunction with free end of the lever15. A pawl 25 is pivoted to the window frame and engages the piece of the ratchet disk 242C whereby the spool 23 is held against turning movement fand runder the influence of the connected weight jacent window sash'27 and is located below the reeend of the pawl 25. The pawl 25 projects into the path of movement of the stop 26 and consequently when the sash 27 is raised the stop 26 comes in contact with the free end of the pawl 25 and lifts the saine so that the said pawl disengages the teeth of the ratchet disk 24 and releases the spool 23. Consequently the attached .weight 22 falls by gravity and the cord 2 1 unwinds from thespool 23. Vhen the weight 22 strikes the free end portion of the lever 15 the said lever is swung in a downward direction whereby the pulley 13 is turned so that the stop 111 is Icarried out of the path of `movement of the stop 10 upon the pulley 2. Thus thep'ulley 2 is released and under the influence 4olli the heavy weight 6 the cable 5 is moved longitudinally and unullS from the pulley 2and the said weight comes in contact with the bell and sounds the same.

Then the pulley 2 tnrns as just vdescribed the lcable 8v is wound thereon andthe weight i weight 221B .litefl- A, Y cable Y1.9 wheneby the pulley 13 is turned and 22. A stop 26 is attached'to the ad- Y i time@ ournaled therein,

Y ley and located tached cords are trained he is informed as to which window sash has been moved.

llhen it is desired to reset the mechanism the window sash is lowered and the cord 21 is wound upon the spool and thus the A pull iseXerted on the the ,stopfll is .carried citt the Apath-olf movement of the stop 10, A Apull exerted; .nfpon the .cable .8 whereby the said v cable is unwound fromthe pulley '-2 and the cable 5 is rewound thereon. Vhen the said pulley 21S-turned `the Shop .10 is, Carried back `to its armal Position The @able 19 is than wleased and the stop 1451s moved into the path of the stoplO by the weight 18..,as show-n in Fig. 1. 'llieweight Y18 acting through the afm 17 Willian-ve te' hold' the Step 14 in the path of movement .of the stop 170' inasmuch as the Weight .18 .iS heavier than the Weight .le The weight lS adiustably mounted .on the lever15 inv a manner to counterbalancev the mechanism to be ,used with a greater or less number of weights 22.

- From the foregoing description taken in the accompanying. dravgit `will be seenthat a fire and burglar axlarm of simple and durable structure is provided and that the same is automatic in taining devices have 'been moved or rup- Having described the invention` what is claimed is i- 1. An alarm comprising a casing, a pulley i cables arranged to wind upon said'pulley in opposite directions and trained through the casing, weightsl attached to the cables, a bell located below one ofthe weights, a sten wanted 1121511.11116 Said pulley, a second pulleyl journaled in the casing,

a lever attached to the last mentioned pulley, astopk carried by the last mentioned pulin the path of movement'of ,the first mentioned stop, a weight adjustably an ,arm` connected mounted uponI the lever,A i Y Y mounted upon the with the lever, weight arm and a series of weights held suspended the lever.` l i 2. An alarm comprising a casing, a pulley journaled therein, means for cushioning the turning movement of the pulley, a stopcarried by the pulley, cables arranged `to wind.

the ,Casing abovethefre@ @11d particu 0f upon the pulley in opposite directions, weights carried by the cables, a bell located in the path of movement of one of the Weights, a second pulley journaled in the casing, a stop mounted upon the last Inentioned pulley and located in the path of movement of the rst mentioned Stop, a

Weighted lever attached to the second menu tioned pulley, an arm attached to the lever, a Weight carried by the arm, held suspended above the free end portion of the said lever.

In testimony whereof I aHiX my signature.

JAMES M. MGCONNELL.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patente, Washington, D. C.

and Weights 10 

